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Using Infrared Photography as a Tool for Replant Decisions and Herbicide Application Decisions

Bobby J. Phipps and Barry B. Bean


ABSTRACT

Infrared photography was evaluated as a tool to make replant and weed control decisions. Infrared emphasizes the plants that are alive. This is needed for making a replant decision and also for determining the need for weed control. Decisions need to be made quickly, so film development time is critical. Infrared color film with the use of only a yellow filter produces a photo that has bright red live plant tissue and all other colors are muted. Digital photography eliminates virtually all of the development time by allowing the photos to be processed in the field on a laptop computer. With only two steps, changing hue and saturation can modify photos. The photos are then ready for interpetion for making replant and weed control decisions. This technique can be a valuable tool for producers, consultants, seed companies, extension personnel and chemical companies.





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Document last modified May 20, 2002